Wire twisting tool



Dec. 30, 1947. V DE VEER 2,433,494

WIRE TWISTING TOOL Filed NOV. 25, 1944 INVENTOR ROY/1164M DE V552 Patented Dec. 30, 1947 U N ITIE'D f STATES PAT-EN T F Fjl' CiE "WIRE TWISTING "TOOL Roy M. Van De Veenfiichmond. Dalif.

Application November 25, 1944, SerialfNo.*y565;082

1.Claim. 1

The invention relates to the wire twisting or tyingart.

The principal object of the invention is rlthe provision of atoolfor .twisting together the-ends of the wires commonlynused inthe construction of :concretezforms.

Lesser :objectsinclude the provisionof a wire twisting tool which is readily applied to the ends of wire projecting from the concrete forms; which includes a ratchet device between the handle and the wire so that relatively short vibratory motion of the handle will eifect the twisting, and the provision of means to prevent the gouging of the mechanism into the wood of the forms under the pressure of the twisting Wires.

My invention possesses other objects and features of value, some of which with the foregoing will be set forth in the following description of the invention. It is to be understood that I do not limit myself to the showing made by the said description and the drawings as I may adopt variant forms of the invention with the scope of the appended claim.

Referring to the drawings:

Figure 1 is a front elevation of my wire twisting tool, a portion of the handle being broken away to reduce its length.

Figure 2 is a vertical sectional view through the tool, the plane of section being indicated by the line 2-2 of Figure 3.

Figure 3 is a vertical sectional view, the plane of section being through the central axis of the tool and at right angles to the plane of Figure 2. The plane of section is indicated by the line 33 of Figure 1.

In the construction of forms for the pouring of concrete, it is common practice to tie the forms together with strands of wire, the projecting ends being twisted tightly together. The wire twisting tool embodying my invention is intended to provide an implement readily applied over the projecting ends of the wire to seat against the wooden form and then, by complete revolutions of the handle or by relatively short movements of the handle back and forth, to twist the ends of the wire tightly together. By the inclusion of a reversible ratchet mechanism between the handle and the wire, the tool may be utilized in positions where only limited movement of the handle is possible.

In detaiL the wire twisting tool embodying my invention and which I have selected for illustration, comprises a twisting ring 2 rotatably journaled upon an annular shoe or base 3. The internal diameters of the ring and shoe are the same .and :provide -.:an aperture :4 extending through the tool. Formed .on 1 the :internal zface .of the'ring andthe. external face of .the.-shoe;ar.e matchinggrooves in whichv a split resilient ring ifi may-:be engaged so :as to retainthe .two;;pa-rts together while ermitting freerotation of the ring on :the shoe. .Oppositely 1 disposed apertures :31 .in thering permit :the compression of the; retaining ring and the separation of the parts, if that should become necessary. The apertures also serve as oil holes for the lubrication of the bearing between the two parts.

J ournaled in a suitable bearing on the twisting ring is a collar II to which a handle [2 is attached so that considerable force can be applied to turn the collar. Interposed between the collar and the twisting ring is a reversible ratchet; and this is formed by a plurality of shallow, evenly spaced grooves l3 in the journal seat upon which the collar may be turned on the twisting ring, the handle where it joins the collar, is a ratchet pin [4, slidably mounted at its inner end in the body of the collar, and at its outer end in the bracket l6 secured to the handle. The inner end of the pin I4 is provided with short, oppositely disposed lugs l1 seating in similarly shaped recesses in the collar so that the pin cannot rotate when the lugs are engaged.

The lower end of the pin I8 is formed at an angle as shown in Figure 2, and a spring l9 between the bracket l6 and the lugs l1 resiliently presses the pin into its inner position as shown. The parts are proportioned and arranged so that the collar may be turned on the twisting ring, the spring pressed ratchet pin riding up over the teeth 20 between the grooves l3, when the handle is pushed in one direction, but locking with the ring, the ratchet engaging against the teeth, as shown in Figure 2, when the handle is moved in the other direction. The ratchet is provided with knurled head 2| by which it may be lifted and turned through t reverse its action, the sloping end l8 then facing in a direction opposite to that shown in Figure 2.

The collar l l is retained on its bearing by the flange collar 26 threaded onto the end of the twisting ring, and locked thereon against the face of the collar I l by the set screw 21.

Means are provided on the twisting ring for engaging the ends 28 of the wires 29 extending from the face of the forms 3| through the tool, so that upon turning of the ring the wires will be twisted. Extending diametrically across the open end of the twisting ring and seated in slots cut in the edge of the ring is a bar 32, fixedly held in the slots by the screws 33. Spaced a short distance apart and extending outwardly from the bar are two lugs 34; and immediately above and below the lugs as seen in Figure 1, are the notches 36 formed in the edges of the bar. This arrangement of lugs and notches provides a convenient device for catching the ends 28 of the wires 29, and holding them so that with a turning of the twisting ring they are twisted together into a tie 3'! as shown in dotted lines in Figure 3.

The tool is used by merely seating the face of the shoe 3 against the forms, or against the surface from which the wires extend, and with a wire projecting through the tool, one on each side of the bar. The ends are then grasped and bent over in the notches and between the lugsand the handle turned in whatever direction-is available with a suitable setting of the ratchet.

As the wires twist to form the tie 31, they of course shorten and pull out of the engagement with the bar, but only after enough turns have been made to secure the wire strands together. The ends of the wire maythen be clipped off. If the ends of the wire are unusually long when they are turned down between the lugs,'the twisting will pull them back over the bar until the necessary tie has been formed. The tool is then disengaged by bendin up the remaining portions of wire and withdrawing the tool over the loose ends.

I claim:

A wire twisting tool comprising a ring for enclosing the wires to be twisted, a bar fixed at one end of the ring and having notches oppositely disposed thereon in which the wires may lie, a pair of spaced lugs on the bar for holding the ends of the wires when the ring is rotated, means for revolving the ring to twist the wires together, and an annular base on which the ring is journaled whereby the notched bar is turned at a constant distance from the base to pull free of the twisted wire ends.

ROY M. VAN DE V'EER.

REFERENCES CITED The following references are of record in the file of this patent:

' UNITED STATES PATENTS Number Name Date 2,168,992 Johnson Aug, 8, 1939 743,738 Liechty Nov. 10, 1903 1,477,766 Pulis Dec. 18, 1923 1,073,514 Pennington Sept. 16, 1913 1,707,634 Hjert Apr. 2, 1929 

